Lie detectors are routinely added to breakfast cereals which means 68% of the population can be monitered in the hour and a half optimum point after ingestion to see if they're telling porkies to boss, teachers, colleagues, loved ones etc. The pupil of the left eye dilates after every fib is told.

I reckon.

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By (user no longer on site) over a year ago

Nicked from e how.

Another problem of lie detector tests is in the variable nature of truth. Two people can experience the same event and have two completely different ideas of what happened. To each person, their version is the truth. It is also possible for a person to convince themselves that an event happened differently than it actually did--in their mind, they are telling the truth

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By (user no longer on site) over a year ago

"Because it would do jeremy kyle out of a job

that's the best reason i've heard for using them

The polygraph lie detector can be be fooled as it only detects your stress levels during your answers. Compulsive liars can beat them as they believe what they are saying so they dont get stressed, newer style detectors are not proven yet

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By *uro anchorMan over a year ago

Coventry

i didnt do it .. honest...

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By (user no longer on site) over a year ago

if ya tell porkies ya nose grows don't it?

So ya don't need a machine, ya just need a ruler

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By (user no longer on site) over a year ago

"i wonder if anyone has any theories as to why they are not used in court cases?

other than they are not 100% accurate because nor are witnesses or dna."

Its something to do with privacy and also the fact they are only 96% right and so could lead to expensive retrials.

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By (user no longer on site) over a year ago

Does this not apply to witness statements also? I agree that an accomplished liar or someone who truly believes what they are saying would 'fool' a lie detector but surely there as 'accurate' as witness statements? Lie detector tests have been used in courts in this country to support police testimony that the accused is a liar but there has never been a case where the accused has 'passed' a lie detector and this evidence then been allowed in court to support their case. Definite case of double standards.

Rant over.lol

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By (user no longer on site) over a year ago

"Does this not apply to witness statements also? I agree that an accomplished liar or someone who truly believes what they are saying would 'fool' a lie detector but surely there as 'accurate' as witness statements? Lie detector tests have been used in courts in this country to support police testimony that the accused is a liar but there has never been a case where the accused has 'passed' a lie detector and this evidence then been allowed in court to support their case. Definite case of double standards.

Rant over.lol"

There is a reluctance to use evidence because of the reliably issue and because retrials are so expensive its an avenue currently avoided at the moment.

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By (user no longer on site) over a year ago

Why not just be honest I cant lie to save my life go bright red and start to itch think im allergic to bullshit. Most liars have a tell its like playing poker.

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